The fact that this was not a “Google problem” but rather the result of an often To “a foolish or inept person as revealed by Google“. Johnny coined the term “Googledork” to refer Member effort, documented in the book Google Hacking For Penetration Testers and popularisedīy a barrage of media attention and Johnny’s talks on the subject such as this early talk His initial efforts were amplified by countless hours of community Long, a professional hacker, who began cataloging these queries in a database known as the The process known as “Google Hacking” was popularized in 2000 by Johnny Subsequently followed that link and indexed the sensitive information. Information was linked in a web document that was crawled by a search engine that This information was never meant to be made public but due to any number of factors this Is a categorized index of Internet search engine queries designed to uncover interesting,Īnd usually sensitive, information made publicly available on the Internet. Proof-of-concepts rather than advisories, making it a valuable resource for those who need The Exploit Database is a repository for exploits and Lists, as well as other public sources, and present them in a freely-available andĮasy-to-navigate database. The most comprehensive collection of exploits gathered through direct submissions, mailing Non-profit project that is provided as a public service by Offensive Security.Ĭompliant archive of public exploits and corresponding vulnerable software,ĭeveloped for use by penetration testers and vulnerability researchers. That provides various Information Security Certifications as well as high end penetration testing services. The Exploit Database is maintained by Offensive Security, an information security training company Test this exploit in a VM, please ensure that the VM has at least two Multiple CPU cores, but not in VMs with a single CPU core. Note: The exploit seems to work relatively reliably in VMs with Modprobe: ERROR: could not insert 'rootmod': Too many levels of symbolic linksĮrror opening '/tmp/ntfs_sploit.u48sGO/volume': Is a directoryįailed to mount '/tmp/ntfs_sploit.u48sGO/volume': Is a directory libkmod/libkmod.c:514 lookup_builtin_file() could not open builtin file '/tmp/ntfs_sploit.u48sGO/lib/modules/4.8.0-32-generic/' sploitįailed to open /proc/filesystems: Too many open files in system Make: Leaving directory '/usr/src/linux-headers-4.8.0-32-generic'ĭepmod: WARNING: could not open /home/user/ntfs-3g-modprobe-unsafe/depmod_tmp//lib/modules/4.8.0-32-generic/modules.order: No such file or directoryĭepmod: WARNING: could not open /home/user/ntfs-3g-modprobe-unsafe/depmod_tmp//lib/modules/4.8.0-32-generic/modules.builtin: No such file or. LD /home/user/ntfs-3g-modprobe-unsafe/rootmod.ko Make: Entering directory '/usr/src/linux-headers-4.8.0-32-generic'ĬC /home/user/ntfs-3g-modprobe-unsafe/rootmod.oĬC /home/user/ntfs-3g-modprobe-unsafe/ To reproduce, unpack the attached file,Ĭompile the exploit and run tar xf cd. I have attached an exploit for the issue. Number of open file descriptions (/proc/sys/fs/file-max). Open /proc/filesystems to fail by exhausting the global limit on the proc/filesystems (meaning that get_fuse_fstype() returnsįSTYPE_UNKNOWN) always causes modprobe to be executed, even if theįUSE module is already loaded. Issue can still be attacked because a failure to open In practice, the FUSE module is usually already loaded. Modprobe to load its configuration and the module fromĪttacker-controlled directories. Something like "-C /tmp/evil_config -d /tmp/evil_root" to force Therefore, on a system that does not seem to support FUSE filesystems,Īn attacker can set the environment variable MODPROBE_OPTIONS to The MODPROBE_OPTIONS environment variable can also be used As the manpage of modprobe explicitly points out: The issue is that /sbin/modprobe is not designed to run in a setuidĬontext. Get_fuse_fstype()), ntfs-3g attempts to load the "fuse" module using System whose kernel does not support FUSE filesystems (detected by
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